Sliding window screen supporting structure



" Sept. 24, 1946.

SLIDI NG WINDOW SCREE E. GUTOSKI 2,408,138 N SUPPORTING STRUCTURE Filed 001;. 28. 1944 \Zu I ils -.E'miZ Gutoski N7 .ENZ a A NnE Patented Sept. 24, 1946 PAT NT OFFICE trnmowinnow soRuENrsnrronrn-NG srnucrcns a v Emil Gutoski, Cigmbm- Application October 28, 1944, Serial No. 560,188

My invention relates to sliding screens for windows and particularly to'improved arrangement for co-operatio-n of the screen sash with guide rails on the window frame tor preventing accidental outward displacement of the :screen from the guide rails and falling :of the :screen -:out of the window frame. l v p,

A usual wayof fitting .screens'to wooden window frames is toxn-ai'l guide strips :or rails :tozthe sides of the windowtframe, andtozprovidegrooves in the side edges of 'thes'creen sash for receiving the rails 50 that the screen may bereadily .slid' -vertically on the trails for support in the window ditions the guide strips on that window frame may not aiford sulficient abutment :at all times to prevent accidental outward displacement ,of the sash from the window frame, and .it has frequently happened that an improperly supported screen has been subjected 'to accidental outward pressure by a child leaningthereagai'nst result- 'ing in release of the screen from the rails and of the window frame and with the leg or guide i bead extending inwardly to receive the groove 3 Claims. (Cl. 160369) :of the grooves wider thanthe outer ,portion' outside of the grooves-so that, ifthe particular screen which had been fitted for a particular in the edge of the screen sashr However, in such grooved screens heretofore used, the width of the screen at opposite sides .of the grooves was the same, that is, the tongues at opposite sides of the grooves were of equal width. Therefore when a screen which was not .of the-proper width was inadvertently vapplied to the guides in a frame, lateral edgewise displacement of the screen in the frame'would -bring the edge of the inside tongue ofthe screen close to or outside of the usually rounded end of the guide bead so that comparatively very little outward pressure against the screen would result ;in outward displacement of the screen from the frame.

In accordance with my invention I provide guide strips of L-shaped cross section and secure the guides to the sides of thewindow frame with their base portions extending outwardly; and

with the width of the screen :at the inner side .5

sides of the beads H.

window were replaced :by a screen of narrower width; the comparatively wide inner tongues of the sash-will maintain extended contact with the guide rails to hold the screen against accidental outward displacement from the window by pressureagainstthe insidethereof. I

- My invention will be fully understood by reference to the drawing, in which:

Figure 1 is a front elevation of a window structure on which my improved screen supporting arrangement is applied; 7

Figure 2 is an enlarged perspective view of a portion of the side rail of a screen sash;

Figure 3 is a perspective view of a portionof shaped cross section, comprising the rectangular base ID with theguide leg or bead H extending therefrom, the strip .being secured to the sides of a window frame usually by nailing. The side walls 12 of the wooden sash of the screen were heretofore provided with the longitudinally extending grooves I3 :but with the inner and outer tongue portions l4 and I5 at opposite sides of the grooves of equal width. When a sash is vfitted for a particular window, the inner and outer tongue portions l4 and IE will engage with the base portion is of the guides at opposite However, it frequently happens that, when the screens for a house are installed at the beginning of a summer season,

the screen originally dimensionedfor a certain window will not .beinstalled, but a screen for some other window and which is of less width. will be installed. Now, should this wrong screen become displaced laterally edgewise in the wininner tongue I4will be close to the usually round- .ed end of the bead l I so that any abnormal pressure outwardly against the screen would cause it. to swing out away from the guide strip and fall out of the window frame. This wrongful installing of screens in window frames has fre quently resulted in accidents, as children climbing onto the sill of the window, or leaning out over the sill, may exert pressure against the screen which will readily give under such pressure and together with the child will fall out of the window frame.-

Figure 1 shows a window to which my improved guides and sash have been applied, the screen S being in the lower part of the window frame,

" less than that of the sash intended for such win- 1dow frame;f 'My improved interconnection may be' installed without any increase in cost over to close down against the sill l6.

Referring to Figure 4, the lower window I1 is vertically slidable between the side walls- I8 of the window frame under guidance ofouter and inner strips 19 and 20.

dow framework.

Instead of using guide strips of T-shaped cross section, as shown on Figure 5, I use guide strips of L-shaped cross section comprising the base 23 and the guide leg or bead 24 extending therefrom. The guide strips are secured, as by nails 25, to the inner edges of the casing boards 22 with the base legs 23 extending outwardly, as shown on Figure 4.

The side members 26 of the screen sash have the longitudinally extending groovesZ'l in their outer edges for receiving the guide beads or legs 24 of the guide strips, with the inner and outer tongues 28, 29 at opposite sides of the'grooves engaging with the inner and outer sides of the guide strips. When the screen sash is made for a certain window frame, the width of the sash will be made such that the ends of the inner tongue 23 will engage with the inner edges of the casing boards 22, and the outer tongue 29 will engage with the base portions 23 of the guide strips, as shown at the right of Figure' l. Thus, when a sash has been originally fitted into a certain window frame or is reapplied to the same Window frame after-removal thereof, the wide inner tongues 28 of the sash will be in engagement with the inner side of the base portions 23 of the guide strips as well as the inner side of the guide strip legs or beads 24, while the narrower outer tongues will be in engagement only with the outer sides of the 'guide strip beads. With this comparatively long extent of engagementof the inner tongues 28 with the guide strips, screen sashes of less width than the sash originally fitted for a certain window frame may be applied to such frame without danger of outward displacement of the sash from the windowframe, as the wide inner tongues 28 will maintain sufficient extent of engagement with the guide strips to prevent such outward displacement. Figure 4 shows the application to a window frame of a screen sash whose width is considerably less than the width of the sash originally fitted for such window frame. The inserted sash, even if shifted edgewise to one side of the opening 2|, will maintain sufficiently extended engagement of the tongue 28 at the other edge with the corresponding guide strip to prevent outward displacement of the screen sash from the window frame. As shown on Figure 4, the screen sash outer tongue 29 at the left edge thereof might permit inward swing of the screen sash, but the corresponding inner tongue 28 will be in extended abutting engagement with the corresponding guide strip to prevent outward swing of the screen sash. Thus, even though a screen sash of less width'than that for a certain window frame be inadvertently in-- The screen S is applied to the opening 2| between the side walls 22 of the casing forming the outer side of the Win stalled in such frame, the screen sash will be held against outward displacement under pressure against the inside thereof, this resulting in avoidance of accidents which might otherwise occur, as for example, with guide strip arrangement heretofore used and shown on Figure 5.

I have thus produced an improved sliding inplacement from thewindow frame even though the width of the inserted sash is considerably that .of prior interconnections such as have been referred to hereinbefore.

-It will, of course, be understood that various details of construction may be varied through a wide range without departing from the principles of this invention and it is, therefore, not the purpose'to limit the patent granted hereon otherwise than necessitated-by the scope of the appended claims. Y -I claim as my invention:

1. Interconnection between a sliding sash and a window frame comprising guide strips of L- shaped cross section secured to the sides of the window frame with their base legs thereagainst and with their other legs extending inwardly from the inner ends'of the base legs to provide guide beads, and providing a strip with a sash bearing surface which is the thickness of the strip base plus the thickness of th other leg, longitudinally extending grooves in the respective side edges of the sash for receiving said guide beads, the sash at-the inner side of said grooves being of a width substantially equal to the distance between the walls of the frame to which said guide strips are secured, and the width of the sash at the outer side of said grooves being substantially equal to th distance between the base legs of the guide strips, whereby extended abutment engagement will be maintained between said guide strips and the sash at the inner side of said grooves for preventing outward displacement of the sash from the window frame under pressure against the inner side thereof.

2. An interconnection between a sliding sash and a, window frame comprising guide strips of L-shaped cross section respectively secured to the opposite side walls of the frame with their base legs thereagainst and with their other legs at the inner ends of the base legs extending toward each other to provide guide beads and providing a strip with a sash bearing surface which is the thickness of the strip plus the thickness of the other leg, the opposite edges of the sash being cut to provide guide grooves for receiving said guide beads and to leave short guide tongues at th outer side of 'said'grooves for engaging with the outer sides of the guide beads and longer guide tongues at the inner side of the grooves for engaging with the inner side of the base and guide bead of said guide strips throughout the strip bearing surfaces, whereby extended abutment engagement is maintained between'said long tongues and said guide strips upon lateral edgewise shift of said sash away from either of said guide strips and outward displacement of the sash from the frame under pressure against the inner side of the sash will be prevented.

3. In the combination of a window frame and aslicling screen, guide strips of L-shap fastened to the side walls of the frame along their-outer margins with the bases of the strips towards the outer wall margins and the beads extending at right angles to the side walls, said strips providing inner screen sash bearing surfaces which include the cross-sectional thickness of the bases plus the inner side surfaces of the beads, the side rail of the sash having grooves forming spaced es from top to bottom thereof for engaging the strip heads, the tongues engaging with the inner bearing surfaces of the strips being of substantially the same width as the said surfaces 10 

